Dual-mode phonon dynamics and lasing in optomechanical cavities
Abstract
We use the full nonlinear bifurcation theory as a powerful methodology to thoroughly classify and predict the phonon lasing dynamics in optomechanical cavities. We exemplify its scope in the very relevant and so far vaguely explored dynamics of dual-mode phonon lasing when two independent mechanical modes are directly coupled to one optical field. We uncover a plethora of different lasing regimes in a fixed and realistic cavity geometry, including single- and dual-mode lasing, perfect synchronization of different mechanical modes, and quasiperiodic time crystals. All dynamical regimes are unambiguously associated with bifurcations of different natures, which may exhibit both super and sub-critical natures characterizing the often hysteretic behavior of the systems when they are externally driven by a time-varying laser source. Our results, generalizable to any other optomechanical system, open unprecedented pathways to understand and control the formation and dynamics of optomechanical frequency combs.
Cite
@article{arxiv.2505.03274,
title = {Dual-mode phonon dynamics and lasing in optomechanical cavities},
author = {Raúl Ortiz and Carlos Mas Arabí and Carles Milián and Alejandro Martínez},
journal= {arXiv preprint arXiv:2505.03274},
year = {2025}
}